Tamiya 89918 Double Gearbox Kit - Clear
 
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Tamiya’s double gearbox packs two independent gear trains into a compact and affordable package that is great for small mobile robots. Each side can be assembled to have one of four gear ratios: 12.7:1, 38:1, 115:1, or 344:1.
| Description | Specifications (7) | Pictures (0) | Resources (3) | FAQs (6) |
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General specifications
| Typical operating voltage: | 3 V |
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| Gear ratio options: | 12.7:1, 38:1, 115:1, and 344:1 |
| Free-run motor shaft speed @ 3V: | 12300 rpm1 |
| Free-run current @ 3V: | 150 mA2 |
| Stall current @ 3V: | 2100 mA |
| Motor shaft stall torque @ 3V: | 0.5 oz·in3 |
| Color: | clear |
Notes:
- 1
- A theoretical speed of the gearbox output shaft can be computed by dividing this speed by the gear ratio.
- 2
- This is the no-load current of the motor when disconnected from the gears in the gearbox; the no-load current of the entire gearbox with the motor connected will be slightly higher and will vary depending on the gear ratio.
- 3
- A theoretical torque of the gearbox output shaft can be computed by multiplying this torque by the gear ratio.
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